Comment 4 for bug 95704

Marcw's workaround does the job, but isn't helpful if you've already got arrays set up that you want to delete. You are unable to do so unless you go into a terminal (Alt-F2) and set up a set of symbolic links "ln -s /dev/mdx /dev/md/x" where x is the number(s) of the array(s) you've already made. Return to installer (Alt-F1) and continue with deleting the arrays, which will now work.

Next problem is that you can't pair up the newly released partitions into new MD arrays. But following Marcw's workaround and tracing your steps from the reboot back to the Raid Option, you find your raid arrays ready to assign mount points. You can then complete the install.

Disappointingly for me though, after an apparently successful installation - even that 10 minute brltty-x11 file install wait that looks like its died (perhaps the braille terminal could be a post-install option?) eventually revives - booting from hard disk failed with the Busybox error message "/bin/sh: can't access tty; job control turned off".

Since I've already loaded Herd 5 on a raidless system, I can only assume this is another raid-related problem. I think there are a lot of issues with the software raid setup that need to be addressed before final release.